CN114319320A - Temporary pier steel pipe pile and floating installation method thereof - Google Patents
Temporary pier steel pipe pile and floating installation method thereof Download PDFInfo
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- CN114319320A CN114319320A CN202111632742.2A CN202111632742A CN114319320A CN 114319320 A CN114319320 A CN 114319320A CN 202111632742 A CN202111632742 A CN 202111632742A CN 114319320 A CN114319320 A CN 114319320A
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Abstract
The invention discloses a temporary pier steel pipe pile which comprises a steel pipe pile body, a water stop partition plate and a surrounding structure. The steel-pipe pile body includes multisection pile section, and multisection pile section splices in proper order, and the stagnant water baffle is installed in the bottom of first section pile section for it is sealed with first section pile section stagnant water, in order to float on the surface of water. The enclosure structure comprises a steel protection cylinder and a connecting plate, the steel protection cylinder is sleeved outside the first section pile section, the steel protection cylinder is connected with the first section pile section through the connecting plate, and the steel protection cylinder is internally used for containing concrete. The invention also discloses a floating installation method of the temporary pier steel pipe pile. The temporary pier steel pipe pile and the floating installation method thereof finish the construction of the temporary pier in an assembled manner in an open deepwater area without a covering layer or a shallow covering layer under the condition of no need of a pilot hole.
Description
Technical Field
The invention relates to the technical field of bridge construction, in particular to a temporary pier steel pipe pile and a floating installation method thereof.
Background
In the field of bridge construction in China, the traditional construction method of the underwater temporary pier steel pipe pile is mainly a fishing method or a piling boat implantation method, the temporary pier steel pipe pile is directly implanted into a bearing layer one by depending on equipment, and then a connection system between piers is installed to form a foundation structure.
However, for geological conditions without a covering layer or a shallow covering layer, the temporary pier steel pipe pile cannot be directly implanted into a stratum only by equipment, and under such conditions, a construction process for inserting the temporary pier steel pipe pile after equipment hole guiding is generally adopted, but the process has the problems of high temporary pier construction difficulty, high cost and low work efficiency, and is not beneficial to environmental protection during hole guiding construction.
Disclosure of Invention
Based on the above, it is necessary to provide a temporary pier steel pipe pile and a floating installation method thereof, aiming at the problems of the existing construction process of the temporary pier steel pipe pile, such as high difficulty of temporary pier construction, high cost and low work efficiency.
A temporary pier steel pipe pile, comprising:
the steel pipe pile comprises a steel pipe pile body and a steel pipe pile body, wherein the steel pipe pile body comprises a plurality of sections of pile sections, the pile sections are sequentially spliced, flanges are arranged at the end parts of the pile sections for splicing, two adjacent pile sections are connected through the flanges, and water stop gaskets are arranged between the flanges;
the water stopping partition plate is arranged at the bottom of the first section of the pile section and used for sealing the first section of the pile section in a water stopping way so as to float on the water surface; and
enclose fender structure, including steel casing and connecting plate, the first festival is located to the steel casing cover outside the pile section, just the steel casing passes through connecting plate and first festival the pile section is connected, be used for holding the concrete in the steel casing.
In one embodiment, the pile section of the first section comprises a first section and a second section, the first section is connected with the second section through flanges, the steel casing is sleeved outside the second section, and the water-stop partition plate is installed between the two sets of flanges to realize water-stop sealing of the first section.
In one embodiment, the second section is provided with an inlet opening for the inflow of concrete.
In one embodiment, the outer wall and the inner wall of the second segment are provided with shear nails.
In one embodiment, the enclosure structure further includes a limiting plate and an enclosure plate, the limiting plate is installed outside the steel casing, the limiting plate is provided with a sliding groove, and the enclosure plate is slidably inserted into the sliding groove.
A floating installation method of a temporary pier steel pipe pile adopts any one of the temporary pier steel pipe piles, and comprises the following steps:
transporting the first section of pile section to a pier position and putting the first section of pile section into water, wherein the first section of pile section floats by virtue of buoyancy;
sequentially assembling the rest pile sections, and injecting water into the steel pipe pile body when each pile section is assembled so as to adjust the height of the joints of the pile sections extending out of the water surface;
after the steel pipe pile body is assembled, a temporary positioning anchor is installed, and the temporary pier steel pipe pile implantation is controlled through the temporary positioning anchor and the water injection speed in the steel pipe pile body;
and pouring embedded concrete into the steel casing through a guide pipe arranged between the steel casing and the steel pipe pile body to form an enlarged foundation.
In one embodiment, the step of transporting the first section pile section to the pier position and lowering the first section pile section into the water, wherein the first section pile section floats by means of buoyancy specifically comprises the following steps:
transport the multisection pile section to pier position department through transportation equipment in proper order, utilize hoisting equipment to transfer the first section pile section to aquatic to through hawser with pile section and transportation equipment temporary fixation, prevent that the pile section from removing along with rivers.
In one embodiment, after the temporary pier steel pipe pile is used, the flange for connecting the first section and the second section of the first section of pile section is removed, water in the steel pipe pile body is extracted, the steel pipe pile body rises along with buoyancy, and finally the steel pipe pile body is dismantled section by section through equipment.
In one embodiment, during the implantation process of the temporary pier steel pipe pile, the enclosing baffle plate slides upwards to adapt to the terrain at the pier position.
In one embodiment, the step of transporting the first section pile section to the pier position and lowering the first section pile section into the water further comprises the following steps before the step of floating the first section pile section by means of buoyancy:
measuring the water depth and the topography of the pier position for determining the length of the steel pipe pile body;
and (3) according to the water depth and topographic data of the pier position, combining the temporary pier design, the equipment lifting capacity and the buoyancy calculation result to obtain the manufacturing lengths of the first section pile section and the enclosure structure, and assembling and molding each section pile section on the back field.
The temporary pier steel pipe pile and the floating installation method thereof can solve the problem that the construction of the temporary pier without the covering layer or the shallow covering layer cannot be sunk to the designed bottom elevation through equipment construction, can solve the problem that the construction of the temporary pier without the covering layer or the shallow covering layer can be completed under the condition that other equipment is required to assist in leading holes, avoid the problems of environmental pollution and disposal of waste soil and waste slag during the leading hole construction in the traditional process, have the advantages of simplicity in operation, convenience in use, flexibility in installation, wide applicability, high assembly degree and the like, reduce the construction cost and provide the construction efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present invention, the drawings, which are required to be used in the embodiments, will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to actual scale.
FIG. 1 is a schematic structural diagram of a temporary pier steel pipe pile according to an embodiment;
FIG. 2 is a schematic view of the containment structure of FIG. 1;
fig. 3 is a flowchart of a floating construction method of temporarily upsetting a steel pipe pile according to an embodiment;
FIG. 4 is a schematic view of measuring water depth and topography at a pier position using a measuring line;
FIG. 5 is a schematic view of the lifting apparatus lowering the first pile section into the water;
FIG. 6 is a schematic view of the second section of pile sections being assembled;
FIG. 7 is a schematic view of a third section of pile sections being assembled;
FIG. 8 is a schematic view of temporary pier steel pipe pile implantation;
fig. 9 is a schematic view for removing the temporary pier steel pipe pile.
Reference numerals:
10-a steel pipe pile body, 12-a pile section, 122-a first section, 124-a second section, 126-a shear nail, 14-a flange, 16-a water-stop gasket, 20-a water-stop clapboard, 30-a fence structure, 31-a steel casing, 32-a connecting plate, 33-a limiting plate, 34-a fence, 40-transportation equipment, 42-a measuring rope, 50-hoisting equipment, 52-a cable, 60-terrain, 70-a temporary positioning anchor, 72-a balancing weight and 74-a positioning rope.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present invention is capable of modification in various respects, all without departing from the spirit and scope of the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Referring to fig. 1 and 2, an embodiment of the temporary pier steel pipe pile is mainly applied to open deep water areas under overburden-free or shallow-overburden geological conditions. Specifically, the temporary pier steel pipe pile comprises a steel pipe pile body 10, a water stop partition plate 20 and a fence structure 30.
The steel pipe pile body 10 comprises a plurality of pile sections 12, and the plurality of pile sections 12 are sequentially spliced to form the steel pipe pile body 10. The length of the steel pipe pile body 10 and the number of pile sections 12 may be specifically arranged according to the water depth. In one embodiment, flanges 14 are arranged at the ends of the pile sections 12 for splicing, and two adjacent pile sections 12 are connected through the flanges 14, so that the pile sections 12 can be conveniently disassembled and assembled. A water-stopping gasket 16 is arranged between the flanges 14, and the water-stopping gasket 16 can prevent water from permeating a gap between the two flanges 14.
In one embodiment, the first pile section 12 includes a first section 122 and a second section 124, and the first section 122 and the second section 124 are connected by a flange 14. The first segment 122 is the same length as the other sections of pile 12, and the second segment 124 is an extension of the first section of pile 12 for subsequent connection to a concrete foundation.
On the basis of the above embodiment, further, the second segment 124 is provided with a liquid inlet hole for the concrete to flow into, so that the later concrete flows into the pile section 12 through the liquid inlet hole. Both the outer and inner walls of the second segment 124 are provided with shear pins 126 to ensure adequate bonding between the pile section 12 and the concrete.
The water stop partition plate 20 is installed at the bottom of the first section pile section 12 and used for sealing the water stop of the first section pile section 12, and after the first section pile section 12 is vertically lowered into water, the water stop partition plate can float in the water by overcoming the dead weight of the first section pile section 12 through buoyancy. In one embodiment, a water-stop baffle 20 is installed between the flanges 14 where the first section 122 and the second section 124 are connected to achieve a water-stop seal of the first section 122. Specifically, the water stop separator 20 is welded to the flange 14 to which the first segment 122 is connected.
The enclosure structure 30 comprises a steel casing 31 and a connecting plate 32, the steel casing 31 is sleeved outside the first section pile section 12, the steel casing 31 is connected with the first section pile section 12 through the connecting plate 32, and the steel casing 31 is used for containing concrete. Wherein connecting plate 32 cannot be too long to ensure that pile section 12 is embedded deep enough.
In one embodiment, the steel casing 31 is sleeved outside the second segment 124, and the connecting plate 32 is connected to the second segment 124. Enclose fender structure 30 and still include limiting plate 33 and enclose baffle 34, and limiting plate 33 installs outside steel protects a section of thick bamboo 31, and limiting plate 33 is equipped with the spout, encloses baffle 34 and pegs graft in the spout slidable. The fencing panel 34 may slide upward during the contacting of the fencing structure 30 with the terrain 60 to conform to the terrain 60 and ensure the stability of the temporary pier steel shroud 31.
Referring to fig. 3, the invention further provides a floating installation method of the temporary pier steel pipe pile, which is implemented by using the temporary pier steel pipe pile. Specifically, the floating installation method comprises the following steps:
step S110: the first pile section 12 is transported to the pier position and is lowered into the water, and the first pile section 12 floats by means of buoyancy.
Referring to fig. 4 to 6, specifically, the multi-section pile section 12 is transported to the tonnage by the transporting device 40, and then the first section pile section 12 is lowered into the water by the hoisting device 50, and the first section 122 of the first section pile section 12 is sealed by the water-stop partition plate 20, so that the first section pile section 12 can float in the water by overcoming its own weight through buoyancy after being vertically lowered into the water. After the first pile section 12 is delivered into the water, the pile section 12 is temporarily fixed with the transport equipment 40 through the cable 52, so that the pile section 12 is prevented from moving greatly along with the water flow. In one embodiment, the transport apparatus 40 may be a buoy or a ship, etc.
In one embodiment, before the step S110, the method further includes: by the ship, the constructor uses the measuring rope 42 to perform encrypted measurement on the water depth and the terrain 60 at the pier position so as to determine the total manufacturing length of the steel pipe pile body 10 and the manufacturing length of the retaining structure 30. And recording original data for guiding the temporary pier implantation in the later period.
And then, according to the water depth and the topographic data 60 at the pier position, combining the temporary pier design, the field lifting capacity and the buoyancy calculation result, sizing the processing length of the first-section pile section 12 and the manufacturing length of the enclosure structure 30, assembling and forming each section of pile section 12 on the back field according to drawings, and installing the water-stopping partition plate 20 and the enclosure structure 30 on the first-section pile section 12 in the assembling process.
Step S120: and sequentially splicing the rest pile sections 12, and injecting water into the steel pipe pile body 10 when each pile section 12 is spliced so as to adjust the height of the joint of the pile section 12 extending out of the water surface.
Referring to fig. 6 and 7, specifically, the second pile section 12 is assembled by using the hoisting equipment 50 on water, and water is injected into the steel pipe pile body 10 after the assembly is completed to adjust the height position of the joint, so as to assemble the next section. And repeating the steps to assemble the steel pipe pile body 10.
Step S130: after the steel pipe pile body 10 is assembled, the temporary positioning anchor 70 is installed, and the temporary pier steel pipe pile implantation is controlled through the temporary positioning anchor 70 and the water injection speed in the steel pipe pile body 10.
Referring to fig. 8, specifically, after the steel pipe pile body 10 is assembled, a temporary positioning anchor 70 is installed, and the temporary positioning anchor 70 is used to stabilize the steel pipe pile body 10. Then, the temporary pier steel pipe pile is slowly controlled to be accurately implanted through the temporary positioning anchor 70 and the water injection speed in the steel pipe pile body 10, and the lowering depth is checked through original data in the implantation process.
In one embodiment, the temporary positioning anchor 70 includes a weight 72 and a positioning rope 74, the weight 72 is disposed at the bottom of the water, and the positioning rope 74 connects the weight 72 and the top end of the steel pipe pile body 10. In the process of temporary pier steel pipe pile implantation, the enclosure baffle 34 can slide up and down to adapt to the terrain 60 and ensure the stability of the temporary pier steel pipe pile after implantation.
Step S140: the steel casing 31 is filled with the embedded concrete through the guide pipe provided between the steel casing 31 and the steel pipe pile body 10 to form an enlarged foundation.
Specifically, the guide pipe can be installed on the outer wall of the pile section 12 and deep into the steel casing 31 in the process of installing the pile section 12 in a descending mode; the guide pipe may be attached to the outer wall of the steel pipe pile body 10 and extended into the steel casing 31 after the temporary pier steel pipe pile is implanted. The external concrete can be injected into the steel casing 31 through the guide pipe, the concrete can enter the pile section 12 through the liquid inlet hole, and an enlarged foundation is formed after the concrete is solidified. After the concrete strength meets the requirement, the temporary positioning anchor 70 can be detached for the next temporary pier construction.
Referring to fig. 9, in one embodiment, after the step S140, the method further includes: after the temporary pier steel pipe pile is used, when the temporary pier is removed, the flange 14 connected with the first section 122 and the second section 124 of the first section of pile section 12 is removed, water in the steel pipe pile body 10 is slowly extracted, the steel pipe pile body 10 rises along with buoyancy, and then the pile sections 12 are removed section by section through equipment.
The temporary pier steel pipe pile and the floating installation method thereof can solve the problem that the construction of the temporary pier without the covering layer or the shallow covering layer cannot be sunk to the designed bottom elevation through equipment construction, can solve the problem that the construction of the temporary pier without the covering layer or the shallow covering layer can be completed under the condition that other equipment is required to assist in leading holes, avoid the problems of environmental pollution and disposal of waste soil and waste slag during the leading hole construction in the traditional process, have the advantages of simplicity in operation, convenience in use, flexibility in installation, wide applicability, high assembly degree and the like, reduce the construction cost and provide the construction efficiency.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.
Claims (10)
1. The utility model provides a interim mound steel-pipe pile which characterized in that includes:
the steel pipe pile comprises a steel pipe pile body and a steel pipe pile body, wherein the steel pipe pile body comprises a plurality of sections of pile sections, the pile sections are sequentially spliced, flanges are arranged at the end parts of the pile sections for splicing, two adjacent pile sections are connected through the flanges, and water stop gaskets are arranged between the flanges;
the water stopping partition plate is arranged at the bottom of the first section of the pile section and used for sealing the first section of the pile section in a water stopping way so as to float on the water surface; and
enclose fender structure, including steel casing and connecting plate, the first festival is located to the steel casing cover outside the pile section, just the steel casing passes through connecting plate and first festival the pile section is connected, be used for holding the concrete in the steel casing.
2. A temporary pier steel pipe pile according to claim 1, wherein the pile section at the head section comprises a first section and a second section, the first section and the second section are connected through flanges, the steel casing is sleeved outside the second section, and the water-stop partition plate is installed between the two sets of flanges to achieve water-stop sealing of the first section.
3. A temporary pier steel pipe pile according to claim 2, wherein the second section is provided with a liquid inlet hole into which concrete flows.
4. A temporary pier steel pipe pile according to claim 2, wherein the outer wall and the inner wall of the second section are provided with shear nails.
5. The temporary pier steel pipe pile according to claim 1, wherein the enclosure structure further comprises a limiting plate and an enclosure plate, the limiting plate is mounted outside the steel casing, the limiting plate is provided with a sliding groove, and the enclosure plate is slidably inserted into the sliding groove.
6. A floating installation method of a temporary pier steel pipe pile, which adopts the temporary pier steel pipe pile as claimed in any one of claims 1-5, and is characterized by comprising the following steps:
transporting the first section of pile section to a pier position and putting the first section of pile section into water, wherein the first section of pile section floats by virtue of buoyancy;
sequentially assembling the rest pile sections, and injecting water into the steel pipe pile body when each pile section is assembled so as to adjust the height of the joints of the pile sections extending out of the water surface;
after the steel pipe pile body is assembled, a temporary positioning anchor is installed, and the temporary pier steel pipe pile implantation is controlled through the temporary positioning anchor and the water injection speed in the steel pipe pile body;
and pouring embedded concrete into the steel casing through a guide pipe arranged between the steel casing and the steel pipe pile body to form an enlarged foundation.
7. The floating installation method of the temporary pier steel pipe pile according to claim 6, wherein the first section of pile section is transported to the pier position and is lowered into water, and the step of floating the first section of pile section by means of buoyancy specifically comprises:
transport the multisection pile section to pier position department through transportation equipment in proper order, utilize hoisting equipment to transfer the first section pile section to aquatic to through hawser with pile section and transportation equipment temporary fixation, prevent that the pile section from removing along with rivers.
8. The floating installation method of a temporary pier steel pipe pile according to claim 6, wherein after the temporary pier steel pipe pile is used, a flange for connecting the first section and the second section of the first section of pile section is removed, water in the steel pipe pile body is extracted, the steel pipe pile body rises along with buoyancy, and finally the steel pipe pile body is dismantled section by section through equipment.
9. The floating installation method of the temporary pier steel pipe pile according to claim 6, wherein the fence plate slides upwards to adapt to the terrain at the pier position during the implantation of the temporary pier steel pipe pile.
10. The floating installation method of a temporary pier steel pipe pile according to claim 6, wherein the step of transporting the first section pile section to the pier position and lowering the first section pile section into the water further comprises the step of floating the first section pile section by buoyancy:
measuring the water depth and the topography of the pier position for determining the length of the steel pipe pile body;
and (3) according to the water depth and topographic data of the pier position, combining the temporary pier design, the equipment lifting capacity and the buoyancy calculation result to obtain the manufacturing lengths of the first section pile section and the enclosure structure, and assembling and molding each section pile section on the back field.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111632742.2A CN114319320B (en) | 2021-12-29 | 2021-12-29 | Temporary pier steel pipe pile and floating installation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111632742.2A CN114319320B (en) | 2021-12-29 | 2021-12-29 | Temporary pier steel pipe pile and floating installation method thereof |
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| CN114319320A true CN114319320A (en) | 2022-04-12 |
| CN114319320B CN114319320B (en) | 2023-04-25 |
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| US20090123235A1 (en) * | 2007-11-08 | 2009-05-14 | Technip France | Outer pipe sleeve for a sea floor mooring pile |
| CN105569043A (en) * | 2014-10-15 | 2016-05-11 | 葛洲坝集团第五工程有限公司 | Underwater foundation spreading supporting structure for temporary steel trestle |
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| CN210827452U (en) * | 2019-08-06 | 2020-06-23 | 浙江交工集团股份有限公司 | Karst cavity area plain concrete pile becomes stake device |
| CN212983917U (en) * | 2020-05-21 | 2021-04-16 | 四川路航建设工程有限责任公司 | Steel-pipe pile foundation stress diffusion structure |
| CN112832281A (en) * | 2021-01-05 | 2021-05-25 | 中铁大桥局集团有限公司 | Deep-water large-tonnage temporary pier foundation and construction method thereof |
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2021
- 2021-12-29 CN CN202111632742.2A patent/CN114319320B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090123235A1 (en) * | 2007-11-08 | 2009-05-14 | Technip France | Outer pipe sleeve for a sea floor mooring pile |
| CN105569043A (en) * | 2014-10-15 | 2016-05-11 | 葛洲坝集团第五工程有限公司 | Underwater foundation spreading supporting structure for temporary steel trestle |
| CN107246005A (en) * | 2017-07-31 | 2017-10-13 | 湖南联智桥隧技术有限公司 | Super-large diameter bores and buries steel pipe hollow foundation pile and its construction method |
| CN210827452U (en) * | 2019-08-06 | 2020-06-23 | 浙江交工集团股份有限公司 | Karst cavity area plain concrete pile becomes stake device |
| CN212983917U (en) * | 2020-05-21 | 2021-04-16 | 四川路航建设工程有限责任公司 | Steel-pipe pile foundation stress diffusion structure |
| CN112832281A (en) * | 2021-01-05 | 2021-05-25 | 中铁大桥局集团有限公司 | Deep-water large-tonnage temporary pier foundation and construction method thereof |
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| CN114319320B (en) | 2023-04-25 |
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